Community team coordinator on the European MotorStorm forums, "Lestrade" writes that an update for the game will be coming "in the next couple of weeks." The update will be free and is required to play the game online.

The patch, which bumps up the game to version 1.2, will address several issues, including a bug that allowed racers to exploit the boost, an increase in the size of the buddy list, better online performance, audio issues, and more.Source: GameSpot